Norwegian offshore security watchdog, the Petroleum Safety Authority Norway (PSA), has begun an investigation of the incident on the West Bollsta rig when a size of riser fell from the dealing with tools throughout lifting.
The incident occurred on 17 October 2020, the PSA stated on Tuesday.
Operated by Seadrill Europe Management, this drilling rig obtained an acknowledgement of compliance (AoC) from the PSA in October 2020.
When the incident occurred, it was beneath contract to operator firm Lundin.
The incident occurred on West Bollsta’s drill flooring when a size of the riser was being lifted from a horizontal place to the vertical with assistance from hydraulic dealing with tools.
Said to measure 22.9 metres lengthy, the pipe weighs 26.5 tonnes. It had virtually reached vertical when it grew to become indifferent from the dealing with tools, skidded and fell to the drill flooring.
The space was reportedly cordoned off, and no private damage has been reported as a consequence of the incident.
The PSA regards the incident as severe, and an investigation staff drawn from its specialist employees is now beginning the work.
The major goal of the investigation is to determine the causes of the incident and attainable classes to be learnt and to share this data with the trade.
In conducting its investigation, the PSA will make clear the course of occasions and the scope of the incident, assess the precise and potential penalties of the incident, determine direct and underlying causes, determine nonconformities and enchancment factors associated to the laws, apply mandatory enforcement powers to right attainable regulatory breaches, make public its findings, and contribute to expertise switch to and studying by different gamers within the petroleum sector.
As beforehand reported, the West Bollsta rig is being utilized by Lundin to drill the Polmak effectively within the Barents Sea offshore Norway. The effectively was spud on 10 October 2020.
The spud date got here solely 4 days after the West Bollsta semi-sub was given an AoC by the Petroleum Safety Authority.
The Polmak effectively is the primary of three high-impact exploration prospects to be drilled by the corporate within the Barents Sea till the top of 2020.
In addition to Polmak, the West Bollsta is scheduled to drill the close by Bask and Spissa wells. The gross unrisked potential sources of the three wells are estimated to be at over 800 million barrels of oil equivalents.
As for the rig, the West Bollsta semi-submersible drilling rig is able to working in harsh surroundings areas and ultra-deep waters of as much as 10,000 toes.
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